Abstract：
:Ventral root avulsion (VRA) triggers a strong glial reaction which contributes to neuronal loss, as well as to synaptic detachment. To overcome the degenerative effects of VRA, treatments with neurotrophic factors and stem cells have been proposed. Thus, we investigated neuroprotection elicited by human embryonic stem cells (hESC), modified to overexpress a human fibroblast growth factor 2 (FGF-2), on motoneurons subjected to VRA. Lewis rats were submitted to VRA (L4-L6) and hESC/FGF-2 were applied to the injury site using a fibrin scaffold. The spinal cords were processed to evaluate neuronal survival, synaptic stability, and glial reactivity two weeks post lesion. Then, qRT-PCR was used to assess gene expression of β2-microglobulin (β2m), TNFα, IL1β, IL6 and IL10 in the spinal cord in vivo and FGF2 mRNA levels in hESC in vitro. The results indicate that hESC overexpressing FGF2 significantly rescued avulsed motoneurons, preserving synaptic covering and reducing astroglial reactivity. The cells were also shown to express BDNF and GDNF at the site of injury. Additionally, engraftment of hESC led to a significant reduction in mRNA levels of TNFα at the spinal cord ventral horn, indicating their immunomodulatory properties. Overall, the present data suggest that hESC overexpressing FGF2 are neuroprotective and can shift gene expression towards an anti-inflammatory environment.
journal_name
Exp Neuroljournal_title
Experimental neurologyauthors
Araújo MR,Kyrylenko S,Spejo AB,Castro MV,Ferreira Junior RS,Barraviera B,Oliveira ALRdoi
10.1016/j.expneurol.2017.04.009subject
Has Abstractpub_date
2017-08-01 00:00:00pages
45-57eissn
0014-4886issn
1090-2430pii
S0014-4886(17)30103-6journal_volume
294pub_type
杂志文章abstract：:Ethanol withdrawal (ETX) in ethanol-dependent rats results in susceptibility to seizures, including generalized tonic-clonic audiogenic seizures (AGS). The inferior colliculus (IC) is strongly implicated in AGS initiation during ETX, but IC neuronal mechanisms subserving AGS are unclear. The present study examined IC ...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(95)90062-4
更新日期：1995-03-01 00:00:00
abstract：:c-Fos protein-like immunoreactivity (IR) was investigated in the rat brain following an application of weak anodal direct current to the surface of the unilateral sensorimotor cortex in an attempt to elucidate the cellular and molecular bases of central plasticity. Anodal polarization resulted in a massive increase in...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.1995.1004
更新日期：1995-05-01 00:00:00
abstract：:Alzheimer's disease (AD) is a major neurodegenerative disorder in which overproduction and accumulation of amyloid beta (Abeta) peptides result in synaptic dysfunction. Recent reports strongly suggest that in the initial stages of AD glutamate receptors are dysregulated by Abeta accumulation resulting in disruption of...
journal_title：Experimental neurology
pub_type： 杂志文章,评审
doi：10.1016/j.expneurol.2007.10.008
更新日期：2008-03-01 00:00:00
abstract：:Posttraumatic stress disorder (PTSD), chronic psychological stress, and major depressive disorder have been found to be associated with a significant decrease in glial fibrillary acidic protein (GFAP) immunoreactivity in the hippocampus of rodents. Cotinine is an alkaloid that prevents memory impairment, depressive-li...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2017.06.016
更新日期：2017-09-01 00:00:00
abstract：:The blood-central nervous system-barrier (B-CNS-B) is widely considered a significant impediment to the use of protein neurotrophic factors for the treatment of brain diseases and disorders. In this study, we tested the hypothesis that systemic administration of insulin-like growth factor I (IGF-I) can ameliorate func...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.1999.7143
更新日期：1999-09-01 00:00:00
abstract：:Dopamine (DA) release and metabolism within the substantia nigra (SN) were studied in normal rats, rats with unilateral 6-hydroxydopamine (6-OHDA) lesions, and 6-OHDA-lesioned rats treated with glial cells line-derived neurotrophic factor (GDNF). Animals with > 99% DA depletions, as determined by apomorphine-induced c...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.1997.6571
更新日期：1997-09-01 00:00:00
abstract：:The aim of this study was to characterize the microglial and astroglial reactions to degeneration of (a) hippocampal CA1 pyramidal cells and dentate hilar neurons induced by cerebral ischemia and (b) CA3 pyramidal cells and dentate hilar neurons induced by intraventricular injections of kainic acid (KA). The microglia...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.1993.1041
更新日期：1993-03-01 00:00:00
abstract：:Chondroitin sulfate proteoglycans (CSPGs) are extracellular matrix (ECM) molecules that are widely expressed throughout the developing and adult CNS. In vitro studies demonstrate their potential to restrict neurite outgrowth, and it is believed that CSPGs also inhibit axonal regeneration after CNS injury in vivo. Prev...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/s0014-4886(03)00087-6
更新日期：2003-08-01 00:00:00
abstract：:Vasoactive intestinal peptide (VIP) is one of the neuropeptides showing the strongest up-regulation in the nociceptive pathway after peripheral nerve injury and has been proposed to support neuropathic pain. Nevertheless, the story may be more complicated considering the known suppressive effects of the peptide on the...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2017.03.019
更新日期：2017-07-01 00:00:00
abstract：:Demyelinating diseases comprise a spectrum of immunopathologic syndromes in which myelin, the fatty covering of nerve cell fibers in the brain and spinal cord, is destroyed. In this study, we have shown for the first time that ocular infection of BALB/c mice with a recombinant herpes simplex virus type 1 (HSV-1) expre...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2004.12.004
更新日期：2005-05-01 00:00:00
abstract：:The alpha-secretase-derived form of the amyloid precursor protein (sAPPalpha), which is released from neurons in an activity-dependent manner, has been shown to promote long-term survival of hippocampal and cortical neurons in culture and can protect those neurons against excitotoxic and ischemic injury in culture and...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.2002.7920
更新日期：2002-06-01 00:00:00
abstract：:Intranuclear inclusion bodies are a shared pathological feature of Huntington's disease (HD) and its transgenic mouse model. Using a panel of antibodies spanning the entire huntingtin molecule, we have investigated the pattern of immunoreactivity within the intranuclear inclusions in the frontal cortex and striatum of...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.1998.7005
更新日期：1999-03-01 00:00:00
abstract：:One of the primary hallmarks of glutamate excitotoxicity is degradation of the neuronal cytoskeleton. Using a tissue culture approach, we have investigated the relationship between excitotoxicity and cytoskeletal degradation within axons, with particular reference to the axon specific neurofilament proteins. Neurofila...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2005.01.005
更新日期：2005-06-01 00:00:00
abstract：:The binding of agonists and antagonists to beta-adrenergic receptors in brain tissue obtained postmortem in nonalcoholic controls and matched intoxicated and sober alcoholics was measured to assess the state of the receptors and their coupling to adenylate cyclase. Binding of antagonist, iodocyanopindolol, to cerebral...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(89)90131-3
更新日期：1989-09-01 00:00:00
abstract：:The members of the tenascin family are involved in a number of developmental processes, mainly by their ability to regulate cell adhesion. We have here studied the distribution of mRNAs for tenascin-X, -C, and -R and the closely related molecule tenascin/J1 in the olfactory system and spinal cord. The olfactory bulb a...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.2000.7543
更新日期：2000-12-01 00:00:00
abstract：:The tendency of a rat to approach the wall of an open-field and to travel along the perimeter of the field (termed as "peritaxis" or "wall-facing") is affected by unilateral removal of the vibrissae. Peritaxis is lateralized by hemivibrissotomy. The finding that the dopamine agonist apomorphine reversed the direction ...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(88)90172-0
更新日期：1988-03-01 00:00:00
abstract：:Mitochondria play a pivotal role in the cascade of events associated with cell death pathways that are involved with several forms of neurodegeneration. Recent findings show that in the Bax/Bak-dependent pathway of apoptosis, the release of cytochrome c from mitochondria is a consequence of two carefully coordinated e...
journal_title：Experimental neurology
pub_type： 杂志文章,评审
doi：10.1016/j.expneurol.2009.05.021
更新日期：2009-08-01 00:00:00
abstract：:Inherited neurological diseases in animals are of interest to a wide range of scientific disciplines, particularly because such animals may be suited as genetic animal models for respective human disorders. Because the pig has a number of anatomic and physiologic features similar to those of human beings, this species...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.1995.1050
更新日期：1995-08-01 00:00:00
abstract：:Olfactory ensheathing cells (OEC) constitute a specialized population of glia that accompany primary olfactory axons and have been reported to facilitate axonal regeneration after spinal cord injury in vivo. In the present report we describe OEC neurotrophic factor expression and neurotrophic properties of OECs in vit...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/s0014-4886(02)00058-4
更新日期：2003-04-01 00:00:00
abstract：:Traumatic axonal injury (TAI) evolves within minutes to hours following traumatic brain injury (TBI). Previous studies have identified axolemmal disruption and impaired axonal transport (AxT) as key mechanisms in the evolution of TAI. While initially hypothesized that axolemmal disruption culminates in impaired AxT, p...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2004.05.022
更新日期：2004-11-01 00:00:00
abstract：:Anatomic and electrophysiologic evidence suggests there is a vestibular input to eye movement-related pause neurons in the midline of the pontine reticular formation of the cat. The present investigation sought to explore the functional significance of this vestibular drive by examining pause neuron response to horizo...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/0014-4886(87)90300-1
更新日期：1987-03-01 00:00:00
abstract：:Locally generating new proteins in subcellular regions provide means to spatially and temporally modify protein content in polarized cells. Recent years have seen resurgence of the concept that axonal processes of neurons can locally synthesize proteins. Experiments from a number of groups have now shown that axonal p...
journal_title：Experimental neurology
pub_type： 杂志文章,评审
doi：10.1016/j.expneurol.2009.08.011
更新日期：2010-05-01 00:00:00
abstract：:Major practical constraints on neural grafting in Parkinson's disease are the shortage of human donor tissue and the great loss of dopamine neurons during the grafting procedure. The vast majority of implanted embryonic dopamine neurons are believed to die within a few days of transplantation surgery, at least in part...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.2000.7406
更新日期：2000-07-01 00:00:00
abstract：:The role of interferon-gamma (IFN-gamma) in the pathogenesis of multiple sclerosis and experimental autoimmune encephalomyelitis (EAE) is still controversial. We have studied the function of IFN-gamma and its receptor in the EAE model using two different IFN-gamma receptor knockout (IFN-gamma R(-/-)) mouse types: C57B...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.2001.7815
更新日期：2001-12-01 00:00:00
abstract：:Stress and glucocorticoids exacerbate pain via undefined mechanisms. Macrophage migration inhibitory factor (MIF) is a constitutively expressed protein that is secreted to maintain immune function when glucocorticoids are elevated by trauma or stress. Here we show that MIF is essential for the development of neuropath...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2012.04.018
更新日期：2012-08-01 00:00:00
abstract：:Eph tyrosine kinase receptors and their ligands, the ephrins, play a key role in the establishment of retinotectal topography during development. Tectal up-regulation of ephrin-A2 in goldfish, coincident with the reestablishment of a retinotectal map, suggests a similar role during optic nerve regeneration. Here we re...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/s0014-4886(03)00211-5
更新日期：2003-10-01 00:00:00
abstract：:The regional, cellular, and subcellular localization of phosphorylated p38 MAPK (pp38) was examined by immunocytochemistry, immuofluorescent multiple labeling, and immunoblotting of extracts as well as immunoprecipitates of human postmortem tissue from control and Alzheimer's disease (AD) cases at different Braak stag...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/s0014-4886(03)00180-8
更新日期：2003-10-01 00:00:00
abstract：:Huntingtin is a cytoplasmic protein that is found in neurons and somatic cells. In patients with Huntington's disease (HD), the NH2-terminal region of huntingtin has an expanded polyglutamine tract. An abnormal protein interaction by mutant huntingtin has been proposed as a mechanism for HD pathogenesis. Huntingtin as...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1006/exnr.1998.6832
更新日期：1998-07-01 00:00:00
abstract：:Alpha-synuclein (alphaSN) is implicated in Parkinson's disease (PD) and is the major component of Lewy bodies (LBs). Although alphaSN is mainly expressed in neuronal cells and exists as a cytoplasmic protein, it has been found in body fluids including cerebrospinal fluid and blood. This study explored plasma alphaSN a...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2006.12.006
更新日期：2007-04-01 00:00:00
abstract：:We compared the magnetic cerebral activity of 10 fetal subjects at two different gestational ages. Spontaneous cerebral activity was recorded with a large array magnetometer specially designed to conform to the maternal gravid abdomen during the third trimester of pregnancy. We recorded each fetal subject at least twi...
journal_title：Experimental neurology
pub_type： 杂志文章
doi：10.1016/j.expneurol.2004.06.026
更新日期：2004-11-01 00:00:00
